Internal Turmoil in TMC Reaches Delhi: Sushmita Dev Resigns from Rajya Sabha

The All India Trinamool Congress (TMC) is facing significant internal turmoil as Sushmita Dev resigns from the Rajya Sabha, following the earlier departure of Sukendu Shekhar Roy. This series of resignations signals a growing discontent within the party, particularly as 61 legislators align with rebel factions. Political analysts view these developments as a direct challenge to Mamata Banerjee's leadership. Speculation about Dev's next political steps is rife, with discussions about a potential return to Congress or new opportunities. As TMC grapples with these challenges, the implications for the party's future remain uncertain.

By Narendra Chaudhary Jun 10, 2026, 12:06 IST

TMC's Internal Strife Escalates

The ongoing internal conflict within the All India Trinamool Congress (TMC) has now extended its reach to the political corridors of Delhi. The grip of TMC leader and Chief Minister Mamata Banerjee appears to be weakening. Following the alignment of 61 legislators in support of rebel leader Ritabrata Banerjee in the West Bengal Assembly, discontent has now surfaced in the Rajya Sabha as well.

Resignations Shake TMC Leadership

Just a week after the resignation of senior and trusted party member Sukendu Shekhar Roy from the Rajya Sabha, TMC's dynamic leader Sushmita Dev has also stepped down from her position in the upper house. The departure of two prominent Rajya Sabha members within a week has sent shockwaves through Mamata Banerjee's camp.

Sushmita Dev: A Political Journey

Sushmita Dev is a well-known figure in Indian politics, particularly in the North-East region. She began her political career as a senior leader in the Congress party, representing the high-profile Silchar Lok Sabha seat in Assam.

Joining TMC: A Strategic Move

After facing defeat in the 2019 Lok Sabha elections and due to differences with the Congress leadership, she left the party in 2021 to join the Trinamool Congress. Mamata Banerjee took a significant gamble by appointing her to expand the party's presence in the North-East, leading to her rapid rise within TMC. She was appointed as the party's national spokesperson and later rewarded with a prestigious Rajya Sabha seat.

Political Implications of Dev's Resignation

Dev's resignation comes at a time when TMC is grappling with one of its most severe internal crises. Political analysts suggest that this resignation is not merely the loss of a member but a direct challenge to Mamata Banerjee's organizational leadership.

A Series of Setbacks for TMC

The resignation of Sushmita Dev marks the second significant blow within a week, following Sukendu Shekhar Roy's exit from the Rajya Sabha. This trend indicates a fragmentation of TMC's parliamentary group in Delhi. Additionally, the support of 61 legislators for the rebel faction in Bengal signals an escalating 'Mamata vs. Rebels' conflict within the party.

Future Speculations for Sushmita Dev

Following her resignation, speculation is rife regarding Sushmita Dev's next political move. Discussions are ongoing about whether she will return to Congress or seek new opportunities. Meanwhile, this rebellion has placed TMC on the defensive ahead of the upcoming parliamentary session.